Is this 3D model free to download?

Yes, Air Balloon Motor for LEGO is free to download from MyMiniFactory. Open it in the free Thinger app, or use the "Download from MyMiniFactory" link to open the original listing by the creator.

Where do I download the STL file?

The download is hosted by MyMiniFactory. Use the "Download from MyMiniFactory" link on this page to open the original listing and grab the file, or save it to your print queue in the free Thinger app.

Designed by Slava_Z, published on MyMiniFactory. Please credit the creator when sharing your print.

Can I print this at home?

Yes. This is a printable 3D model intended for home FDM and resin printers. Check the original listing for suggested print settings.

Air Balloon Motor for LEGO 3D printable model by Slava_Z

Air Balloon Motor for LEGO

Source: MyMiniFactory by Slava_Z

The Air Balloon Motor for LEGO is a free printable 3D model from MyMiniFactory by Slava_Z. Updated, better running version of the motor can be found on the MakerWorld.Demo and assembly guide: view in 3d viewer: Extra parts needed:- Nitrile glove- Air balloon Takes 4m. You can download the STL file from the original listing below and print it at home.

Open in Thinger (free) Download from MyMiniFactory

38 saves Source: MyMiniFactory Updated 2026-10-25 Print time: 5h License: CC-BY-NC-ND · non-commercial

Tags: engine, lego, motor, balloon, air, radial, technic, Compressed

About this model

Updated, better running version of the motor can be found on the MakerWorld.Demo and assembly guide: view in 3d viewer: Extra parts needed:- Nitrile glove- Air balloon Takes 4m of filament to print (about 5h at 20mm/s on my snail of a printer).Will print a bit prettier with supports (80deg. overhang, touching buildplate) and ironing.Parts with names starting with "X_" are optional. You can insert one balloon into another to get thicker walls. Meant for 2-walled balloon. Idles well with one (with a flywheel), but will hardly pull any vehicle. You can use metal M5 washer instead of printed one Found that PLA isn't the best material for the design: isn't very slippery, and "fluid" (the clips stop pushing the parts together with time)

Frequently asked questions

Is this 3D model free to download?: Yes. Air Balloon Motor for LEGO is free to download from MyMiniFactory. Open it in the free Thinger app, or use the "Download from MyMiniFactory" link above to open the original listing.
Where is the STL hosted?: The download is hosted by MyMiniFactory, not by Thinger. We link you directly to the original listing by Slava_Z.
Who made this model?: Designed by Slava_Z, published on MyMiniFactory. Please credit the creator when sharing your print online.
Can I print this at home?: Yes. This model is intended for home FDM and resin 3D printers. Check the original listing for suggested print settings like layer height and supports.